Bag-holding mechanism.



No. 892,185. PATENTED JUNE 30, 1908. P. RUDD. BAG HOLDING MEGHANISM.

APPLICATION FILED JULY 10| 1906.

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No. 892,185. PATENTED JUNE 30, 1908.

` P. RUDD.

BAG HOLDING MEGHANISM. APPLIOATION FILED JULY 1o. 1605.

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UNITED sTATEs PETER RUDD, OF CHICAGO, ILLINOIS.

B AG-HOLD ING ME CHANISM.

Application filed July l0,

To all whom it may concern:

Be it known that I, PETER RUDD, citizen of the United States, residing at Chicago, in thecounty of Cook and State of Illinois, have invented a certain new and useful Improvement in Bag-Holding Mechanism, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to supporting mechanism and particularly to bag holding mechanism for receiving objects and automatically preventing escape thereof until mechanism forming part of or associated with a hook is actuated to release the object.

The bag holding mechanism of my invention is particularly adaptable for supporting objects such as bags to be filled, the weight of the bag as it is being filled itself causing locking mechanism to prevent escape of the bag from the hook, but upon actuation of releasing mechanism the bag after having been filled is automatically released. My invention, therefore, is of great adaptability for use in conjunction with my bag filling and tying machine disclosed in my Patent No. 813,832, issued February 27, 1906. In this machine there is a stationary transverse bar, two parallel side bars and mechanism for causing motion of the side bars to move parallelly toward each other and rearwardly across the transverse bar, the stationary and the movable bars normally forming a jaw. The hooks for receiving and supporting the bag to be filled are suspended from the side members and extend into the jaw compartment. Each of the hooks used in this machine consists of a hook point for engaging the bag and a shield member which normally does not interfere with the application of the bag, but which upon closure of the jaw is engaged by the opposite side bar in such manner as to push the bag from the hook points.

My present invention, however, involves improved retaining and releasing mechanism whose construction and application will be best understood by reference to the accompanying drawings, in which Figure 1 is a diagrammatic plan view of the transverse and side bars and link mechanism for causing opening and closure of the jaw formed by the bars. Fig. 2 is a view showing the bag applied to the hook and Speeication of Letters Patent.

Patented .Tune 30, 1908.

Serial No. 268,942.

showing how its weight serves to lock it in place, the side members being cut away along the line 242 of Fig. 1. Fig. 3 is a view similar to Fig. 2 showing the jaw closed and the releasing mechanism actuated to allow the bag to fall from the hooks. Fig. 4 is a plan view showing the ljaws closed, parts of the link and jaw members being broken away,i

the hook mechanism, part thereof being broken away to reveal the interior construction and arrangement.

The mechanism to which I show the hook applied i's diagrammatically shown as consisting of the frame or body portion 1 having guideways 2 2 at the rear thereof in which may slide the cross head 3. A stationary bar 4 extends across the frame at the front thereof. Parallel side bars 5 and 6 extend across the transverse bar 4 and the front ends 7 and S thereof form a jaw compartment with the section of the transverse bar between them. Parallel links 9 and 10 pivoted to the frame at 11 and 12 respectively, and at their free ends engage with the ends of the side rods 5. In a similar' manner links 13 and 14 pivoted at 15 and 16 to the frame connect with the ends of the side rods 6, and rear links 17 and 18 pivoted to the rear ends of the rods 5 and 6 respectively pivot to the cross head 3, and thus upon reciprocation of the cross head the side bars will be moved parallelly toward each other and rearwardly to thus converge or close up the jaw compartment. Also to further guide the side members 5 and 6, bearing boxes 19 and 20 are adapted to slide along a second stationary transverse bar 21, and the side bars 5 and 6 are ada ted to slide through the boxes 19 and 20. bupported from the side bars within the jaw compartment and from the bearing boxes 19 and 2O are the hooks for supporting a bag 22 or other object. To adapt itself for this machine the hook is constructed as shown in Fig. 5, being substantially rectangular in shape and provided with a rectangular opening 23 near an upper corner thereof for engaging over the side members 5 and 6. The hook here shown consists of two side plates 24 and 25 separated by the spacing plate 26 to leave a compartment 27 at the front part of the hook. At the front part of the plates, however, a section, preferably circular, is cut from the plates to form the hook parts 2S and l 29 which may also be separated at their and Figs. 54 and 6 are perspective views of ICO points 30 and 31 by the spacing piece 32. The opening 23 at the rear upper corner passes through the inclosing plates 24 and 25 and may also pass through the spacer 26 as shown. At the corner opposite the hook part and between the plates is pivoted the ocking member 33. This locking member has a nose 34 adapted normally to rest against the hook point and at its upper end has an arm 35. Between the plates at the upper corner opposite the opening 23 is pivoted a trip lever 36 in the form'of a bell crank Whose inner arm 37 is in engagement with the locking member arm 35 and whose trigger arm 38 normally extends beyond the sides of the inclosing plates. The side plates, spacing plates and mechanism are all held in place by the pivot pins 39 40 and pins 41. A spring 42 suitably secured to the hook frame rests against the back of the `locking member and tends at all times to hold the nose thereof against the hook point. The edge of the bag, for instance, to be supported is pushed in to the hook compartment a slight distance beyond the nose of the locking member and the weight then of the object will cause it to be locked against leaving the hook, and the greater the weight of the bag, or as the weight increases upon filling of the bag, the more strongly will the locking member be pulled downwardly against the material of the bag to lock it against escape. A slight pressure, however,- against the trigger arm 38 of the releasing latch will move the locking member upwardly to allow the bag to slip from the hook points.

When the hooks are applied to the bag supporting machine they are arranged opposite each other on the side jaw members 7 and 8 and are slightly displaced so that when the jaw is closed the hooks will lie side by side as shown in Fig. 4. The front hooks 43 and 44 are secured in place between the pins 45. The rear hooks 46 and 47 are secured to the bearing boxes 19 and 2O respectively, and intermediate hooks 48 and 49 may also be employed, these hooks being secured to sleeves 50 and 51 encircling the side members 7 and 8 and adapted also to slide through the bearing boxes 19 and 20, the pins 52 serving to limit the movement of these intermediate hoolrs. The edge of the empty bag to be filled is carried about the hooks and pushed a distance into the hook compartments beyond the points and the locking members immediately engage the material, and the additional weight of the bag helps to lock the bag to the hook points, and this locking tendency is increased as the bag is being filled. Vhen the bag is sufficiently filled the cross head 3 is moved rearwardly and the jaw members 7 and 8 move rearwardly and parallelly toward each other to converge the mouth of the bag. As the trip arms 38, however, of the tripping levers extend beyond the ends of the hooks they will be engaged by the opposite side jaw member, and when the jaw is finally closed these latches will all be moved inwardly to raise the locking members away from the bag material and the bag leaves the hook oints, and upon opening of the jaw, the springs 42 will return the locking members and the trip levers to their normal position. I have also shown the folding arms 52/ and 53 pivoted at their rear ends to the side members 5 and 6 and at an intermediary point connected by the links 54 and 55 to the stationary bai` 4, the ends of these folding members crossing, as shown in Fig. 4, when the jaw is closed to ress and fold the mouth of the bag after release from the hooks against the bar 4, whereupon tying mechanism, not shown here but illustrated in my patent before referred to, is brought into. action to tie the folded bag.

The inner surface 56 of the hook points is preferably rounded so as not to cut the bag, and is preferably quite steep, while the upper surface 57 of the locking members ap proaches a perpendicular plane when in its normal position. With this arrangement the best locking results are accomplished and at the same time the bags readily slip from the hooks upon a slight actuation of the tripping levers.

The hook of my invention need not necessarily be applied to bag tying machines as shown, or to other machines, but may be secured against a wall or other support and one or more hooks may be thus supported for receiving an object such as a bag, for instance, to be lled, and when used in this manner the inclosing plates 24 and 25 at their rear end may angle out to form flanges 58 and the hook may then be sup orted by means of screws 59-59. Thus ifp a bag, for instance, is filled, it is locked in the hook or hooks until the trip lever is rotated to release the bag, it

being thus unnecessary to lift a heavy filled bag from engagement with the hook as would be vnecessary in ordinary hooks in which the end extends upwardly. In this form of hook shown in Fig. 6 the lever 38 may be lengthened as shown to enable it to be more readily actuated by hand.

I do not wish to be limited lto the exact arrangement and construction of the hook frame and arts associated therewith, nor to the particuar applications of the hook set forth.

I claim as new and desire to secure by Letters Patent:

1. The combination with parallel supporting bars adapted to be moved toward each other, of hook mechanisms secured to the bars and extending toward each other for supporting a bag to be filled, a hook member for each part having a downwardly sloping engaging surface, a locking member for each.

hook mechanism having a locking edge and an upwardly extending arm, the mouth ofl the bag being inserted into the hook comartments between the locking edges and the ook surfaces, the weight of the bag and contents serving to pull the locking members downwardly whereby the mouth of the bag is clamped between the locking edges and the hook surfaces, and tripping levers for engaging the arms on the hook mechanisms adapted upon actuation to remove the locking members to release the bag.

2. The combination with supporting bars ada ted to be moved toward each other, of hooii mechanisms adapted to be moved longitudinally of said supporting bars, a hook member for each hook mechanism having a downwardly sloping engaging surface, a lo eking member for each hook mechanism having a locking edge normally resting against the hook surface, said hook members being normally disposed so that the mouth of a distended bag may be slipped between the locking edges and the hook surfaces, the weight of the bag causing the locking edges to be pulled toward the hook surfaces whereby the ag is clamped to the hooks, the increasing weight of the bag upon filling causing increasing clamping actionof the locking members, tripping mechanism for hook mechanisms, means for causing the supporting bars to move toward each other, means for` simultaneously causing the hook mechanisms to move toward each other longitudinally of the sup orting bars, and means upon motion of saic bars for causing actuation of the tripping mechanism to move the locking members to release the filled bag.

3. The combination with supporting members adapted to be moved toward each other, of hook mechanisms secured thereto for receiving a distended bag, a hook member for each mechanism having a downwardly sloping engaging surface, the mouth of the distended bag being engaged about said hook surfaces, locking mechanism for engaging the material of the bag to prevent slipping of the bag off the hook surfaces while the bag is being filled, said locking mechanism having an arm extending therefrom, means for causing convergence of the hookmechanisms to close the mouth of the bag after filling thereof, and tripping mechanism engaging said arm for moving the locking mechanism aftel convergence to release the filled bag from the hooks.

4; The combination with supporting members adapted to be moved toward each other, of hook mechanisms supported therefrom, a hook member for each hook mechanism having a downwardly sloping engaging surface, said hook members being normally disposed so that the mouth of a distended bag may be slip ed thereover, a locking member for each hoo mechanism having a locking edge'for engaging the material of the bag when in position on the hook members, said locking member having a lug extending therefrom, the weight of the bag and contents causing the locking members to securely clamp the mouth of the bag to the hook surfaces, means after filling of the bag for causing convergence of the hook mechanisms to fold together the mouth of the bag, tripping mechanism for each hook mechanism engaging said lug, and means upon convergence of the hoek mechanisms for actuating the tripping mechanisms to remove the locking mechanisms from the material to release the bag from the hook members.

5. In supporting mechanism the combination with a hook member having a downwardly sloping engaging surface for receiving the object to be supported, of a locking member having an arm and a locking edge adapted to exert pressure at substantially right angles to the hook plane, whereby the object received by the hook is by its own weight clam ed to the hook, and means comprising a bell) crank lever engaging the arm on the locking member whereby said locking member is automatically actuated to release the object.

The combination with supporting bars adapted to be moved parallelly toward each other, of hook mechanisms adapted to be moved longitudinally of said supporting bars, a hook member for each hook mechanism having a downwardly sloping engaging surface, a locking member for each hook mechanism having a locking edge normally resting against the hook surface, said locking member having an arm extending upwardly therefrom, said hook members being normally disposed so that the mouth of the distended bag may be slipped between the locking edges and the hook surface, the weight of the bag causing the locking edges to be pulled toward the hook surface whereby the bag is clamped to the hooks, tripping mechanism or hook mechanisms, means for causing the supporting bars to move toward each other, means for simultaneously causing the hook mechanisms to move toward each other longitudinal of the supporting bars, and means upon motion of said bars for causing actuation of the tripping mechanism, said tripping mechanism engaging an upwardly extending arm on said locking members and adapted to move the locking members to release the filled bag.

7. In a supporting mechanism, the combination witha hook member having a downwardly sloping engaging surface for receiving the object to be supported, of a locking member having a lug extending upwardly and a locking edge adapted to exert pressure at substantially right angles to the hook plane whereby the object received in the hook is by its own weight clamped to said hook, and means comprising a bell crank lever engaging the upwardly extending lug on the locking member whereby said locking member may be actuated to release the object.

8. The combination with supporting bars adapted to be moved parallelly toward each other, of hook mechanism adapted to be moved longitudinally to said supporting bars, a hook member for each hook mechanism hav ing a downwardly sloping engaging surface, a locking member for each hook mechanism having a locking edge normally resting against the hook surface, said locking member having an arm extending therefrom, said hook members being normallyl disposed so that the mouth of a distended bag may be slipped between the locking edges and the hook surface, the weight of the bag causing the locking edges to be pulled toward the hook surface, whereby the bag is clamped to the hooks, tripping mechanism associated with said loc ring members, means for causing the supporting bars to move toward each other7 means for` simultaneously causing the hook mechan-v isms to move toward each other longitudinally of the supporting bars, said trip ing mechanism engaging the arm of said loc ring members and upon motion of said bars being adapted to nuove the locking members to release the filled bag.

In witness whereof, l hereunto subscribe my name this 7th day of July, A. D. 1905.

PETER RUDD.

Witnesses:

CHARLES J. SCHMIDT, LEONARD WV. NOVANDER. 

